Fermat's Spiral
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Also called a parabolic spiral, it is a type of Archimedean Spiral. A spiral is defined as “a plane curve which runs continuously round and round, a fixed point, called the center, with constantly increasing radius vector, so that the latter is never normal to the curve; also, a part of such a curve in the course of which the radius from the center describes 360 degrees.” —Whitney, 1889
Keywords
parabola, Archimedes, spirals, spiral, Archimedean Spiral, Fermat's spiral, Pierre de Fermat, parabolic spiral, radius vectorGalleries
SpiralsSource
William Dwight Whitney, PhD, LLD The Century Dictionary: An Encyclopedic Lexicon of the English Language (New York, NY: The Century Co., 1895) 5839
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